engross vs preoccupy

engross

verb
  • To completely engage the attention of. 

  • To write (a document) in large, aesthetic, and legible lettering; to make a finalized copy of. 

  • To monopolize; to concentrate (something) in the single possession of someone, especially unfairly. 

preoccupy

verb
  • To distract; to draw attention elsewhere. 

  • To worry or concern (someone) so as to distract them. 

How often have the words engross and preoccupy occurred in a corpus of books? (source: Google Ngram Viewer )